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National Stock Number:
5305-01-126-9277
Federal Supply Class:
5305
National Item Identification Number:
011269277
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 1894794 | 16764 | GENERAL MOTORS CORP DELCO REMY DIV | | 1894794 | 1LW55 | BORGWARNER PDS (ANDERSON), L.L.C. |
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Techincal Specification:
| FASTENER LENGTH | 1.985 INCHES MINIMUM AND 2.030 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | HEAD DIAMETER | 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | PURCHASE DESCRIPTION IDENTIFICATION | 16764-P30S31S1 | | SPECIAL FEATURES | HIGH GRADE ALLOY STEEL;USED ON AVCO STARTER 1114673;LUBRICANT FINISH,DRY TO TOUCH,PER GM4435-M,CODE A72; GM1131-M,TYPE D SEALER AROUND FLAT UNDER THE HEAD;0.2712 IN. MIN. AND 0.2752 IN. MAX. PITCH DIA. OF THREADEDPORTION;0.2764 IN. MAX. PITCH DIA. AFTER PHOSPHATE COATING;HEAD BEARING SURFACE MUST BE FREE OF TOOL MARKS; 0.350 IN. MIN. LG UNTHREADED PORTION OF FASTENER;BALL-TYPE INTERNAL WRENCHING FACILITY;FLAT U.S. STANDARD SCREW POINT,W/ CHAMFER 35 DEG. MIN. AND 40 DEG. MAX. TO MINOR DIA. | | WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | G-4435-M,CODE A72 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 1.635 INCHES MINIMUM AND 1.680 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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